Transient complete atrioventricular block associated with curcumin intake.

VT has long been recognised as a complication of severe bradyarrhythmias, and less commonly can be the cause of syncope and death in patients with complete atrioventricular block or sinus node dysfunction.

Incomplete or complete atrioventricular block may develop at serum concentrations around 18 mg/dL (9.0 mEq/L or 4.49 mmol/L) and may progress to complete heart block, asystole, and cardiac arrest.